BioStacks
Best for
Ingredients (4)
Whey Protein
100%Dose
20 g
Target
20–30 g
Form
Not listed
Calcium
100 mgTrace amount — not scored
Iron
1 mgTrace amount — not scored
Fiber
1 gTrace amount — not scored
Nutrition
Calories, macros & sodium.
- Sodium140 mg
- Fiber1 g
Other Ingredients (7)
ErythritolSweetener
Witkowski et al. 2023 (Nature Medicine, PMID 36849732) reported elevated plasma erythritol associated with major adverse cardiovascular events (MACE) in two cohorts (n=4,000+), with in-vitro and ex-vivo evidence of enhanced platelet aggregation. Replication is ongoing; FDA and EFSA have not changed their safety positions, but the signal is real and the additive is purely cosmetic. Better-established concern: GI tolerance — single doses above ~50 g cause osmotic diarrhea. Lower threshold for children.
Natural FlavorsFlavor
Broad regulatory category of flavor constituents derived from natural sources. Composition is proprietary and not disclosed — 'Natural Flavors' can include several hundred different compounds depending on the target flavor profile, including hexane-extracted constituents and proprietary carrier solvents. 'Natural' is a regulatory definition (21 CFR §101.22), not a safety guarantee.
InulinFiller
Prebiotic soluble fiber from chicory root, used as a filler and flow agent in capsules and tablets
Sea SaltFlavor
Basic food-grade salt used for taste in supplements
Stevia ExtractSweetener
Zero-calorie natural sweetener extracted from the leaves of Stevia rebaudiana
Sunflower LecithinEmulsifier
Non-GMO, non-allergenic emulsifier derived from sunflower seeds
Xanthan GumThickener
Natural thickener from fermented carbohydrates
How to Take It
Take it anytime
Total daily protein is what matters — the post-workout "anabolic window" has not held up in controlled trials.
With or without food
On the label
Mix 2 scoops in your beverage of choice.
General guidance based on the ingredients, not a substitute for the label or your doctor.
Price Check
$33.95
Near the median of 660 calcium supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.